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Dr. Robert M. Mcmahon, MD


Dr. Mcmahon's Overview

Dr. Robert M. Mcmahon graduated from the Washington University School of Medicine in 1989. He works in Saint Louis, MO and specializes in Gastroenterology. Dr. Mcmahon is affiliated with Saint Anthonys Medical Center and SSM Saint Clare Health Center.

Dr. Mcmahon's Experience

Years in Practice: 26

Dr. Mcmahon's Specialties


Dr. Mcmahon's Education & Training

Medical School: Washington University School of Medicine; Graduated 1989

Dr. Mcmahon's Rating

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Dr. Mcmahon's Accepted Insurance

  • Aetna Choice POS II
  • Aetna HMO
  • Aetna Managed Choice POS Open Access
  • Aetna Signature Administrators PPO
  • Anthem Blue Access PPO
  • Anthem Blue Preferred HMO
  • Anthem Blue Preferred Plus POS
  • Anthem Blue Preferred Select
  • BCBS Blue Card PPO
  • View More

Dr. Mcmahon's Office Information & Appointments

Office Locations

South County Outpatient Endoscopy Services

5139 Mattis Rd Ste 100
Saint Louis, MO 63128
(314) 729-9780


Office Hours and Information

Fax: (314) 729-9785

Practice Website: Not Available

Accepting New Patients: Yes

Medicare Accepted: Yes

Medicaid Accepted: Yes

Monday 6:00 AM - 5:00 PM
Tuesday 6:00 AM - 5:00 PM
Wednesday 6:00 AM - 5:00 PM
Thursday 6:00 AM - 5:00 PM
Friday 6:00 AM - 5:00 PM
Saturday Closed
Sunday Closed

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Dr. Mcmahon's Hospital Affiliations

Office Locations

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